Home / 300,982.12-415,397.64-186,297.56

Finding the Fourth Proportional to 300,982.12, 415,397.64 and 186,297.56

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Solution

The fourth proportional to 300,982.12, 415,397.64 and 186,297.56 is: 257,116.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,982.12 : 415,397.64 = 186,297.56 : x
  2. Step 2: Convert to fraction form
    300,982.12/415,397.64 = 186,297.56/x
  3. Step 3: Cross multiply
    300,982.12x = 415,397.64 × 186,297.56
  4. Step 4: Simplify right side
    300,982.12x = 77,387,566,761.76
  5. Step 5: Solve for x
    x = 77,387,566,761.76/300,982.12
  6. Step 6: Final answer
    x = 257,116.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.